Allen, S.E., 1989. Analysis of vegetation and other organic materials. In: S.E. Allen (ed.), Chemical Analysis of Ecological Materials, third edition. p. 46–60. Blackwell Scientific Publications, Oxford, England.
Bates, L.S., Waldren, R.P., Treare, I.D., 1973. Rapid determination of free proline for water stress studies. Plant and Soil. 39, 205-207.
Chaves, M.M., Maroco, J.P., Pereira J.S., 2003. Understanding plant response to drought: from genes to the whole plant. Functinal Plant Biology. 30, 239-264.
Hameed, M., Ashraf. M., 2008. Physiological and biochemical adaptations of Cynodon dactylon (L.) Pers. from the salt range (Pakistan) to salinity stress. Flora. 203, 683-694.
Hanson, A.D., Hitz, W.D., 1982. Metabolic responses of plant water deficit. Annual Review of Plant Physiology. 33, 163-203
Hashemi dezfuli, A., Kochaki, E., Banaian, M., 1995. Increasing Crop Yield. Iranian Academic Center for Education, Culture and Research (ACECR), Mashhad Publication. 360p. [In Persian].
Jampeetong, A. Brix. H., 2009. Effect of NaCl salinity on growth, morphology, photosynthesis and proline accumulation of Salvia natans. Aquatic Botany. 91, 181-186.
Manivannan, P., Abdul Jaleel, C., Sankar, B., Kishorekumar, A., Somasundaram, R., Lakshmanan, G.M.A., Panneerselvam, R., 2007. Growth, biochemical modifications and proline metabolism in Helianthus annuus L. as induced by drought stress. Colloids and Surfaces, B: Biointerfaces. 59, 141-149.
Sadizadeh, M., Abbassi, F., Baghizadeh, A., Yazdanpanah, A., 2009. The effects of salicylic acid and ascorbic acid on some of resistance mechanisms to drought stress in Echium amoenum. American-Eurasian Journal of Agricultural and Environmental Science. 6(3), 262-267.
Zhao, K.F., Harris, P.J., 1992. The effects of iso-osmotic salt and water stresses on the growth of halophyte and non-halophyte. Journal of . Plant Physiology. 139, 761-763.
)